JP2013543348A5 - - Google Patents

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JP2013543348A5
JP2013543348A5 JP2013537753A JP2013537753A JP2013543348A5 JP 2013543348 A5 JP2013543348 A5 JP 2013543348A5 JP 2013537753 A JP2013537753 A JP 2013537753A JP 2013537753 A JP2013537753 A JP 2013537753A JP 2013543348 A5 JP2013543348 A5 JP 2013543348A5
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複数の分散型送受信機局又はアンテナにネットワークを介して通信接続された一つまたはそれ以上の集中型ユニットから成るマルチユーザ（ＭＵ）マルチアンテナシステム（ＭＵ-ＭＡＳ）であって、
前記ネットワークが、バックホール通信チャンネルとして使用される有線リンク、無線リンク、又は両者の組合せから成り、
前記集中型ユニットが、Ｎ個のデータストリームを、M個の事前符号化データストリームに変換し、各事前符号化データストリームが、Ｎ個のデータストリームの内の幾つか又は全ての組合せであり、
前記M個の事前符号化データストリームが前記ネットワークを介して前記分散型送受信機局に送られ、
前記分散型送受信機局が、無線リンクを介して少なくとも一つのクライアントに前記事前符号化データストリームを同時に送り、少なくとも一つのクライアントデバイスが、元のN個のデータストリームの少なくとも一つを受信するようにすることを特徴とするシステム。 A multi-user (MU) multi-antenna system (MU-MAS) consisting of one or more centralized units communicatively connected via a network to a plurality of distributed transceiver stations or antennas,
The network consists of a wired link, a wireless link, or a combination of both used as a backhaul communication channel;
The centralized unit converts N data streams into M pre-encoded data streams, each pre-encoded data stream being a combination of some or all of the N data streams;
The M pre-encoded data streams are sent to the distributed transceiver station via the network;
The distributed transceiver station simultaneously sends the pre-encoded data stream to at least one client over a wireless link, and at least one client device receives at least one of the original N data streams A system characterized by doing so. 前記複数の分散型アンテナが、ゼロＲＦエネルギを有する空間にロケーションを作成するために無線周波数（ＲＦ）信号を送信することを特徴とする請求項１のシステム。   The system of claim 1, wherein the plurality of distributed antennas transmit radio frequency (RF) signals to create locations in a space having zero RF energy. 前記ＭＵ−ＭＡＳが隣接するクラスター間の干渉を除去し、前記システムが、
ＭＵ−ＭＡＳ通信チャネルを介して、第１のクライアントデバイスと通信するための第１のＭＵ−ＭＡＳクラスターであって、前記第１のＭＵ−ＭＡＳクラスターからの信号強度が、前記第１のクライアントデバイスによって検出される、第１のＭＵ−ＭＡＳクラスター、及び
前記ＭＵ−ＭＡＳ通信チャンネルと干渉する信号を発生する第２のＭＵ−ＭＡＳクラスターであって、前記第２のＭＵ−ＭＡＳクラスターからの干渉信号強度が、前記第１のクライアントデバイスによって、検出される、第２のＭＵ−ＭＡＳクラスターを含み、
前記第１のＭＵ−ＭＡＳクラスターからの前記信号強度が、前記第２のＭＵ−ＭＡＳクラスターからの前記干渉信号強度の値に対する指定の値に到達した場合に、前記第１のクライアントデバイスが、前記第１のクライアントデバイスの一つ以上のアンテナと、前記第２のＭＵ−ＭＡＳクラスターの一つ以上のアンテナとの間のチャンネル状態を定めるチャンネル状態情報（CＳＩ）を発生し、前記ＣＳＩを、前記第２のＭＵ−ＭＡＳクラスター内の基地送受信機局（ＢＴＳ）に送信し、
前記ＢＴＳが、前記第１クライアントデバイスにおけるＲＦ干渉を避けるために、ＭＵ−ＭＡＳクラスター間干渉（ＩＭＣＩ）相殺によってＭＵ-ＭＵＳ事前符号化を実施する請求項１記載のシステム。 The MU-MAS removes interference between adjacent clusters, and the system comprises:
A first MU-MAS cluster for communicating with a first client device via a MU-MAS communication channel, wherein the signal strength from the first MU-MAS cluster is the first client device And a second MU-MAS cluster that generates a signal that interferes with the MU-MAS communication channel, the interference signal from the second MU-MAS cluster detected by A second MU-MAS cluster whose intensity is detected by the first client device;
When the signal strength from the first MU-MAS cluster reaches a specified value for the value of the interference signal strength from the second MU-MAS cluster, the first client device Generating channel state information (CSI) defining a channel state between one or more antennas of a first client device and one or more antennas of the second MU-MAS cluster; and To the base transceiver station (BTS) in the second MU-MAS cluster,
The system of claim 1, wherein the BTS performs MU-MUS precoding with MU-MAS intercluster interference (IMCI) cancellation to avoid RF interference at the first client device. 前記ＭＵ−ＭＡＳが、第１クライアントデバイスとの通信を第１クライアントデバイスが第１のＭＵ−ＭＡＳクラスターから第２のＭＵ−ＭＡＳクラスターまで移動する時に調節し、前記システムが、
前記第１のクライアント装置が、前記第１のクライアントデバイスと前記第１のＭＵ−ＭＡＳクラスター間（「Ｓ１」）及び該第１のクライアントデバイスと第２のＭＵ−ＭＡＳクラスター間（「Ｓ２」）の信号強度を検出し、
前記第１のクライアントデバイスが、Ｓ２がＳ１に対して十分に低い第１の指定ゾーン内である時に、該第１のクライアントデバイスを含む第１の複数のクライアントに同じ周波数帯域内で同時非干渉データストリームを送信するために前記第１のＭＵ−ＭＡＳクラスター内の基地送受信機局（ＢＴＳ）の少なくとも１つに対して従来のＭＵ−ＭＡＳ事前符号化を実施し、かつ該第１のクライアントを含まない第２の複数のクライアントデバイスに同じ周波数帯域内で同時非干渉データストリームを送信するために前記第２のＭＵ−ＭＡＳクラスターの該ＢＴＳに対して従来のＭＵ−ＭＡＳ事前符号化を実施し、
前記第１のクライアントデバイスが、Ｓ２及びＳ１の相対値が結果として第１の閾値が到達するように、Ｓ２がＳ１に対して増加し及び／又はＳ１がＳ２に対して減少した第２の指定ゾーン内である時に、該第１のクライアントデバイスの１つ又はそれよりも多くのアンテナと前記第２のＭＵ−ＭＡＳクラスターの１つ又はそれよりも多くのアンテナとの間のチャンネル状態を定義するチャンネル状態情報（ＣＳＩ）を生成し、該第２のＭＵ−ＭＡＳクラスターのＢＴＳが、該ＣＳＩを使用して、該第１のクライアントデバイスでのＲＦ干渉を回避するためにＭＵ−ＭＡＳクラスター間干渉（ＩＭＣＩ）相殺を用いてＭＵ−ＭＡＳ事前符号化を実施し、
前記第１のクライアントデバイスが、Ｓ２及びＳ１の相対値が結果として第２の閾値が到達するように、Ｓ２がＳ１に対して増加し及び／又はＳ１がＳ２に対して減少した第３の指定ゾーン内である時に、該第１のクライアントデバイスを含む第２の複数のクライアントデバイスに同じ周波数帯域内で同時非干渉データストリームを送信するために前記第２のＭＵ−ＭＡＳクラスターの前記ＢＴＳに従来のＭＵ−ＭＡＳ事前符号化を実施し、かつ該第１のクライアントデバイスの１つ又はそれよりも多くのアンテナと前記第１のＭＵ−ＭＡＳクラスターの１つ又はそれよりも多くのアンテナとの間のチャンネル状態を定義するチャンネル状態情報（ＣＳＩ）を生成し、該第１のＭＵ−ＭＡＳクラスターのＢＴＳが、該ＣＳＩを使用して、該第１のクライアントデバイスでのＲＦ干渉を回避するためにＭＵ−ＭＡＳクラスター間干渉（ＩＭＣＩ）相殺を用いてＭＵ−ＭＡＳ事前符号化を実施し、
前記第１のクライアントデバイスが、Ｓ２及びＳ１の相対値が結果として第３の閾値が到達するように、Ｓ２がＳ１に対して増加し及び／又はＳ１がＳ２に対して減少した第４の指定ゾーン内である時に、該第１のクライアントデバイスを含む前記第２の複数のクライアントデバイスに同じ周波数帯域内で同時非干渉データストリームを送信するために前記第２のＭＵ−ＭＡＳクラスター内の前記基地送受信機局（ＢＴＳ）の少なくとも１つに対して従来のＭＵ−ＭＡＳ事前符号化を実施し、かつ該第１のクライアントデバイスを含まない前記第１の複数のクライアントデバイスに同じ周波数帯域内で同時非干渉データストリームを送信するために前記第１のＭＵ−ＭＡＳクラスターの該ＢＴＳに対して従来のＭＵ−ＭＡＳ事前符号化を実施する、
ことを特徴とする請求項１記載のシステム。 The MU-MAS coordinates communication with a first client device as the first client device moves from a first MU-MAS cluster to a second MU-MAS cluster;
The first client device is connected between the first client device and the first MU-MAS cluster (“S1”), and between the first client device and the second MU-MAS cluster (“S2”). Detects the signal strength of
When the first client device is in a first designated zone where S2 is sufficiently low relative to S1, simultaneous non-interference in the same frequency band to a first plurality of clients including the first client device Performing conventional MU-MAS pre-encoding on at least one of the base transceiver stations (BTS) in the first MU-MAS cluster to transmit a data stream; and Performing conventional MU-MAS precoding on the BTS of the second MU-MAS cluster to transmit simultaneous non-interfering data streams in the same frequency band to a second plurality of client devices not included ,
The first client device has a second designation in which S2 is increased with respect to S1 and / or S1 is decreased with respect to S2, such that a relative value of S2 and S1 results in a first threshold being reached. Define channel conditions between one or more antennas of the first client device and one or more antennas of the second MU-MAS cluster when in a zone Generate channel state information (CSI), and the BTS of the second MU-MAS cluster uses the CSI to avoid MU-MAS inter-cluster interference to avoid RF interference at the first client device (IMCI) perform MU-MAS precoding with cancellation,
The first client device has a third designation in which S2 increases with respect to S1 and / or S1 decreases with respect to S2, such that a relative value of S2 and S1 results in a second threshold being reached. Conventionally to the BTS of the second MU-MAS cluster to transmit simultaneous non-interfering data streams in the same frequency band to a second plurality of client devices including the first client device when in the zone MU-MAS precoding and between one or more antennas of the first client device and one or more antennas of the first MU-MAS cluster Channel state information (CSI) defining the channel state of the first MU-MAS cluster is generated by the BTS of the first MU-MAS cluster using the CSI. Conducted MU-MAS precoding using the MU-MAS intercluster interference to avoid RF interference at the client device (IMCI) offset,
The first client device has a fourth designation that S2 has increased with respect to S1 and / or S1 has decreased with respect to S2, such that the relative value of S2 and S1 results in a third threshold being reached. The base in the second MU-MAS cluster to transmit simultaneous non-interfering data streams in the same frequency band to the second plurality of client devices including the first client device when in a zone Performs conventional MU-MAS precoding for at least one of the transceiver stations (BTS) and simultaneously within the same frequency band to the first plurality of client devices not including the first client device Perform conventional MU-MAS precoding on the BTS of the first MU-MAS cluster to transmit a non-interfering data stream That,
The system according to claim 1. 前記ＭＵ−ＭＡＳが第１のクライアントデバイスとの通信を調節し、
前記クライアントデバイスに、ＲＦエネルギを送る複数のアンテナを有するＭＵ−ＭＡＳネットワークを備え、
該ＭＵ−ＭＡＳネットワークの該クライアントデバイス及び／又は１つ又はそれよりも多くの基地局送受信機（ＢＴＳ）が、該クライアントデバイスの現在の速度を推定し、該ＢＴＳのうちの１つ又はそれよりも多くが、該クライアントデバイスを該クライアントデバイスの該推定速度に基づいて特定のＭＵ−ＭＡＳネットワークに割り当てる
ことを特徴とする請求項１記載のシステム。 The MU-MAS coordinates communication with a first client device;
The client device comprises a MU-MAS network having a plurality of antennas for transmitting RF energy;
The client device and / or one or more base station transceivers (BTS) of the MU-MAS network estimate the current speed of the client device and one or more of the BTSs 2. The system of claim 1, wherein most assign the client device to a particular MU-MAS network based on the estimated speed of the client device. 前記ＭＵ−ＭＡＳが第１のクライアントデバイスとの通信を調節し、
１つ又はそれよりも多くのデータストリームにＭＵ−ＭＡＳ重みを適用して１つ又はそれよりも多くのＭＵ−ＭＡＳ事前符号化データストリームを生成し、
前記ＭＵ−ＭＡＳ事前符号化データストリームが送信される通信チャンネルに関連する入力チャンネル品質情報（ＣＱＩ）及び／又はチャンネル状態情報（ＣＳＩ）を受信し、
前記ＣＱＩ及び／又はＣＳＩに基づいて電力スケーリング係数を決定し、
前記ＭＵ−ＭＡＳ事前符号化データストリームの各々に前記電力スケーリング係数を適用することを含むことを特徴とする請求項１記載のシステム。 The MU-MAS coordinates communication with a first client device;
Applying MU-MAS weights to one or more data streams to generate one or more MU-MAS pre-encoded data streams;
Receiving input channel quality information (CQI) and / or channel state information (CSI) associated with a communication channel over which the MU-MAS pre-encoded data stream is transmitted;
Determining a power scaling factor based on the CQI and / or CSI;
The system of claim 1, comprising applying the power scaling factor to each of the MU-MAS pre-encoded data streams. 前記ＭＵ−ＭＡＳが、第１のクライアントとの通信を調節し、
チャンネル状態情報（ＣＳＩ）及び／又はチャンネル品質情報（ＣＱＩ）を受信し、
前記ＣＳＩ又はＣＱＩに基づいて同じクラスター内のＭＵ−ＭＡＳアンテナの群を選択し、
前記ＣＳＩ及び／又はＣＱＩに基づいて、ＭＵ−ＭＡＳ重みを適用して各群内で１つ又はそれよりも多くのＭＵ−ＭＡＳ事前符号化データストリームを生成することを
を含むことを特徴とする請求項１記載のシステム。 The MU-MAS coordinates communication with the first client;
Receiving channel state information (CSI) and / or channel quality information (CQI);
Selecting a group of MU-MAS antennas in the same cluster based on the CSI or CQI;
Applying MU-MAS weights to generate one or more MU-MAS pre-encoded data streams within each group based on the CSI and / or CQI. The system of claim 1. 前記ＭＵ−ＭＡＳが複数のクライアントデバイスと通信し、
第１の複数のＭＵ−ＭＡＳアンテナの各々とクライアントデバイスの各々との間のチャンネル状態を定義するチャンネル状態情報（ＣＳＩ）を決定し、
前記ＣＳＩを使用して、前記第１の複数のＭＵ−ＭＡＳアンテナの各々と前記クライアントデバイスの各々のアンテナとの間の前記チャンネルの各々に対するＭＵ−ＭＡＳ事前符号化重みを決定し、
前記ＣＳＩ及びＭＵ−ＭＡＳ事前符号化重みを使用して、前記第１の複数のＭＵ−ＭＡＳアンテナの各々と前記クライアントデバイスの各々の前記アンテナとの間のリンク品質を定義するリンク品質メトリックを決定し、
前記リンク品質メトリックを使用して異なるクライアントデバイスに対する変調符号化方式（ＭＣＳ）を決定し、
前記第１の複数のＭＵ−ＭＡＳアンテナの各々から個々のクライアントデバイスの各々までそれらのクライアントデバイスに対する前記決定されたＭＣＳを使用して事前符号化データストリームを送信することを
を含む請求項１記載のシステム。 The MU-MAS communicates with a plurality of client devices;
Determining channel state information (CSI) defining a channel state between each of the first plurality of MU-MAS antennas and each of the client devices;
Using the CSI to determine a MU-MAS precoding weight for each of the channels between each of the first plurality of MU-MAS antennas and each antenna of the client device;
The CSI and MU-MAS precoding weights are used to determine a link quality metric that defines a link quality between each of the first plurality of MU-MAS antennas and each of the antennas of the client device. And
Determining a modulation and coding scheme (MCS) for different client devices using the link quality metric;
2. Transmitting a pre-encoded data stream from each of the first plurality of MU-MAS antennas to each of individual client devices using the determined MCS for those client devices. System. 前記ＭＵ−ＭＡＳが事前符号化補間を行い、且つ複数のクライアントデバイスと通信するために直交周波数分割多重（ＯＦＤＭ）及びＭＵ−ＭＡＳ事前符号化を使用し、
前記システムが、作動を行うプログラムコードを処理するためのプロセッサを含み、前記作動が、
ＯＤＦＭトーンの第１の部分集合を選択して事前符号化重みの第１の部分集合を決定し、
事前符号化重みの前記第１の部分集合間で補間することにより、ＯＤＦＭトーンの第２の部分集合のための事前符号化重みの第２の部分集合を導出し、
事前符号化重みの前記第１の部分集合及び事前符号化重みの前記第２の部分集合の組合せを使用して、データストリームを該データストリームをクライアントデバイスに送信する前に事前符号化することを含むことを特徴とする請求項１記載のシステム。 The MU-MAS performs precoding interpolation and uses orthogonal frequency division multiplexing (OFDM) and MU-MAS precoding to communicate with multiple client devices;
The system includes a processor for processing program code to perform operations, the operations comprising:
Selecting a first subset of ODFM tones to determine a first subset of precoding weights;
Deriving a second subset of precoding weights for the second subset of ODFM tones by interpolating between said first subsets of precoding weights;
Using a combination of the first subset of pre-encoding weights and the second subset of pre-encoding weights to pre-encode the data stream before sending the data stream to the client device; The system of claim 1, comprising: 前記ＭＵ−ＭＡＳが、
複数の無線クライアントデバイスと、
前記複数のクライアントデバイスとの複数の同時の通信チャンネルを確立するための複数のＭＵ−ＭＡＳアンテナを有する複数の基地送受信機局（ＢＴＳ）と、
を含み、
前記ＢＴＳ及び／又は前記無線クライアントデバイスのいずれかが、それらの間の前記通信チャンネルのリンク品質を測定し、かつ該リンク品質測定値を使用してクライアントデバイスクラスターを定義し、
前記ＢＴＳ及び／又は前記無線クライアントデバイスは、更に、定義されたクライアントデバイスクラスター内の各クライアントデバイスと各ＭＵ−ＭＡＳアンテナ間のチャンネル状態情報（ＣＳＩ）を測定し、かつ該測定ＣＳＩに基づいて該クライアントデバイスクラスター内の該ＭＵ−ＭＡＳアンテナとそれらのＭＵ−ＭＡＳアンテナによって到達可能な前記クライアントデバイスとの間のデータ伝送を事前符号化する、
ことを特徴とする請求項１記載のシステム。 The MU-MAS is
Multiple wireless client devices;
A plurality of base transceiver stations (BTS) having a plurality of MU-MAS antennas for establishing a plurality of simultaneous communication channels with the plurality of client devices;
Including
Either the BTS and / or the wireless client device measures the link quality of the communication channel between them, and uses the link quality measurement to define a client device cluster;
The BTS and / or the wireless client device further measures channel state information (CSI) between each client device and each MU-MAS antenna in the defined client device cluster, and based on the measured CSI Pre-encoding data transmissions between the MU-MAS antennas in a client device cluster and the client devices reachable by those MU-MAS antennas;
The system according to claim 1. ブロック対角化事前符号化を使用することを特徴とする請求項１に記載のシステム。   The system of claim 1, wherein block diagonalization precoding is used. Ｍ個の分散型送信アンテナが、ゼロＲＦエネルギの（Ｍ−１）個までの点を作成することを特徴とする請求項２に記載のシステム。   The system of claim 2, wherein the M distributed transmit antennas create up to (M-1) points of zero RF energy. 前記ゼロＲＦエネルギのロケーションは、受信機であり、前記送信アンテナは、前記送信機と該受信機間の前記チャンネル状態情報を認識し、該送信機は、該チャンネル状態情報を利用して同時に送信される干渉信号を決定することを特徴とする請求項２に記載のシステム。   The location of the zero RF energy is a receiver, the transmit antenna recognizes the channel state information between the transmitter and the receiver, and the transmitter transmits simultaneously using the channel state information. The system of claim 2, wherein an interference signal to be determined is determined. 前記送信アンテナは、マルチユーザ（ＭＵ）マルチアンテナシステム(ＭＵ−ＭＡＳ)アンテナであり、
前記ゼロＲＦエネルギを有するロケーションは、クライアントデバイスのロケーションに対応し、ＭＵ−ＭＡＳ事前符号化が、該クライアントデバイスに対してゼロＲＦエネルギの点を作成するために使用されることを特徴とする請求項２に記載のシステム。 The transmit antenna is a multi-user (MU) multi-antenna system (MU-MAS) antenna;
The location having zero RF energy corresponds to the location of a client device, and MU-MAS precoding is used to create a zero RF energy point for the client device. Item 3. The system according to Item 2. ゼロＲＦエネルギの点が、隣接ＭＵ−ＭＡＳクラスター間の干渉を除去するために作成されることを特徴とする請求項２に記載のシステム。   The system of claim 2, wherein zero RF energy points are created to eliminate interference between adjacent MU-MAS clusters. 前記第１のクライアントデバイスが、前記第１のＭＵ−ＭＡＳクラスターからの該第１のクライアントデバイスによって検出された前記信号強度と前記第２のＭＵ−ＭＡＳからの該第１のクライアントデバイスによって検出された前記干渉信号強度との比率に基づく該第１のクライアントデバイスでの信号対干渉ノイズ比（ＳＩＮＲ）を推定することにより、該第１のＭＵ−ＭＡＳクラスターからの該信号強度の指定の値が該第２のＭＵ−ＭＡクラスターからの該干渉信号強度の前記値に対する前記指定の値に到達するか否かを決定し、
前記第１のクライアントデバイスが、前記ＳＩＮＲが指定の閾値よりも下に移動する時に該第１のクライアントデバイスの１つ又はそれよりも多くのアンテナと前記第２のＭＵ−ＭＡＳクラスターの１つ又はそれよりも多くのアンテナとの間のチャンネル状態を定義するチャンネル状態情報（ＣＳＩ）を生成する、
ことを更に含むことを特徴とする請求項３に記載のシステム。 The first client device is detected by the signal strength detected by the first client device from the first MU-MAS cluster and the first client device from the second MU-MAS. By estimating a signal-to-interference noise ratio (SINR) at the first client device based on a ratio with the interference signal strength, a specified value of the signal strength from the first MU-MAS cluster is obtained. Determining whether to reach the specified value for the value of the interference signal strength from the second MU-MA cluster;
When the first client device moves the SINR below a specified threshold, one or more antennas of the first client device and one or more of the second MU-MAS clusters or Generating channel state information (CSI) that defines the channel state with more antennas;
The system of claim 3 further comprising: 前記第１のＭＵ−ＭＡＳクラスター内の複数の基地局送受信機（ＢＴＳ）、
を更に含み、
前記第１のＭＵ−ＭＡＳクラスターの前記ＢＴＳは、前記第１のクライアントデバイスを含む第１の複数のクライアントデバイスに同じ周波数帯域内で同時非干渉データストリームを送信するために従来のＭＵ−ＭＡＳ事前符号化を実施し、
前記第２のＭＵ−ＭＡＳクラスター内の前記ＢＴＳは、第２の複数のクライアントデバイスに同じ周波数帯域内で同時非干渉データストリームを送信するために前記ＩMＣＩ相殺事前符号化と同時に実施される従来のＭＵ−ＭＡＳ事前符号化を実施する、
ことを特徴とする請求項３に記載のシステム。 A plurality of base station transceivers (BTSs) in the first MU-MAS cluster;
Further including
The BTS of the first MU-MAS cluster is configured to transmit a conventional non-interfering data stream in a same frequency band to a plurality of first client devices including the first client device. Perform the encoding,
The BTS in the second MU-MAS cluster is implemented simultaneously with the IMCI cancellation precoding to transmit simultaneous non-interfering data streams in the same frequency band to a second plurality of client devices. Perform MU-MAS pre-encoding,
The system according to claim 3. 第２のＭＵ−ＭＡＳクラスターからの前記第１のクライアントデバイスでの干渉信号強度を検出することは、前記第１のＭＵ−ＭＡＳクラスターの前記ＭＵ−ＭＡＳアンテナからの指定のサイレンス期間中に信号強度を測定することを含むことを特徴とする請求項３に記載のシステム。   Detecting the interference signal strength at the first client device from a second MU-MAS cluster is a signal strength during a specified silence period from the MU-MAS antenna of the first MU-MAS cluster. 4. The system according to claim 3, comprising measuring. 前記指定のサイレンス期間は、所定の送信フレーム構造に基づいて指定されることを特徴とする請求項１８に記載のシステム。   The system of claim 18, wherein the specified silence period is specified based on a predetermined transmission frame structure. 前記第１のＭＵ−ＭＡＳクラスター及び前記第２のＭＵ−ＭＡＳクラスターは、マルチキャリア直交周波数分割多重（ＯＦＤＭ）システムを含み、
前記第１のクライアントで信号対干渉比（ＳＩＲ）又は信号対干渉ノイズ比（ＳＩＮＲ）を推定することにより、前記第１のＭＵ−ＭＡＳクラスターからの前記信号強度の指定の値が、前記第２のＭＵ−ＭＡＳクラスターからの前記干渉信号強度の前記値に対する前記指定の値に到達するか否かを決定し、該ＳＩＲが、該第１のＭＵ−ＭＡＳクラスターからの該第１のクライアントによって検出された該信号強度と該第２のＭＵ−ＭＡＳクラスターからの該第１のクライアントによって検出された該干渉信号強度との比率に基づいており、該ＳＩＮＲが、該第１のＭＵ−ＭＡＳクラスターからの該第１のクライアントによって検出された該信号強度と該第２のＭＵ−ＭＡＳクラスターからの該第１のクライアントによって検出された該干渉信号強度及びノイズ信号強度との比率に基づいており、該ＳＩＲ又はＳＩＮＲが、前記ＯＤＦＭシステムのヌルトーンから推定される前記決定すること、
を更に含む、
ことを特徴とする請求項３に記載のシステム。 The first MU-MAS cluster and the second MU-MAS cluster comprise a multi-carrier orthogonal frequency division multiplexing (OFDM) system;
By estimating a signal-to-interference ratio (SIR) or a signal-to-interference noise ratio (SINR) at the first client, the specified value of the signal strength from the first MU-MAS cluster becomes the second value. Determine whether the specified value for the value of the interference signal strength from the MU-MAS cluster of the first MU-MAS cluster is reached, and the SIR is detected by the first client from the first MU-MAS cluster Based on a ratio of the measured signal strength to the interference signal strength detected by the first client from the second MU-MAS cluster, wherein the SINR is derived from the first MU-MAS cluster. The signal strength detected by the first client and the interference detected by the first client from the second MU-MAS cluster. Is based on the ratio between the intensity and the noise signal intensity, that said SIR or SINR is, the determining estimated from null tones of the ODFM systems,
Further including
The system according to claim 3. 前記第１のＭＵ−ＭＡＳクラスターからの前記信号強度が前記第２のＭＵ−ＭＡＳクラスターからの前記干渉信号強度の前記値に対する指定の値に到達した場合に、該第２のＭＵ−ＭＡＳクラスターからのトレーニング信号を使用して、前記第１のクライアントデバイスの１つ又はそれよりも多くのアンテナと該第２のＭＵ−ＭＡＳクラスターの１つ又はそれよりも多くのアンテナとの間のチャンネル状態を定義する前記チャンネル状態情報（ＣＳＩ）を生成することを特徴とする請求項３に記載のシステム。   When the signal strength from the first MU-MAS cluster reaches a specified value for the value of the interference signal strength from the second MU-MAS cluster, from the second MU-MAS cluster Are used to determine the channel condition between one or more antennas of the first client device and one or more antennas of the second MU-MAS cluster. The system according to claim 3, wherein the channel state information (CSI) to be defined is generated. 前記第２のＭＵ−ＭＡＳクラスター内の前記ＢＴＳでＭＵ−ＭＡＳクラスター間干渉（ＩＭＣＩ）相殺を用いてＭＵ−ＭＡＳ事前符号化を実施することは、前記第１のクライアントデバイスのロケーションでゼロＲＦエネルギを作成するために高周波（ＲＦ）信号を事前符号化して送信することを含むことを特徴とする請求項３に記載のシステム。   Performing MU-MAS precoding with MU-MAS inter-cluster interference (IMCI) cancellation at the BTS in the second MU-MAS cluster is a zero RF energy at the location of the first client device. 4. The system of claim 3, comprising pre-encoding and transmitting a radio frequency (RF) signal to create a signal. Ｓ１及びＳ２に対して信号対干渉ノイズ比（ＳＩＮＲ）及び／又は信号対干渉比（ＳＩＲ）を計算すること、
ＳＩＲ及び／又はＳＩＮＲの値に基づいて第１、第２、及び第３の閾値を定義することと、
を更に含むことを特徴とする請求項４に記載のシステム。 Calculating a signal to interference noise ratio (SINR) and / or a signal to interference ratio (SIR) for S1 and S2,
Defining first, second and third thresholds based on SIR and / or SINR values;
The system of claim 4 further comprising: 前記第１のクライアントデバイス及び／又は前記ＢＴＳが、Ｓ１及びＳ２の前記相対値に基づいて、該第１のクライアントデバイスがゾーン間を移動するのに応答してヒステリシスループを実施して該ゾーンの各々間の反復的な切り換えを回避するために前記第１から第３の閾値の値の各々を動的に調節すること、
を更に含むことを特徴とする請求項４に記載のシステム。 Based on the relative values of S1 and S2, the first client device and / or the BTS performs a hysteresis loop in response to the first client device moving between zones to Dynamically adjusting each of the first to third threshold values to avoid repetitive switching between each;
The system of claim 4 further comprising: 前記クライアントデバイスが現在常駐する前記ゾーンに関する決定が、該クライアントデバイスによって行われることを特徴とする請求項４に記載のシステム。   The system of claim 4, wherein a determination regarding the zone in which the client device currently resides is made by the client device. 前記クライアントデバイスが現在常駐する前記ゾーンに関する決定が、前記第１のＭＵ−ＭＡＳクラスター及び／又は前記第２のＭＵ−ＭＡＳクラスター内のＢＴＳによって行われることを特徴とする請求項４に記載のシステム。   5. The system of claim 4, wherein a determination regarding the zone in which the client device currently resides is made by a BTS in the first MU-MAS cluster and / or the second MU-MAS cluster. . 命令のシーケンスを実行するプロセッサとして実施される有限状態機械を用いて実施されることを特徴とする請求項４に記載のシステム。   5. The system of claim 4, implemented using a finite state machine implemented as a processor that executes a sequence of instructions. 前記ＲＦエネルギは、ドップラーシフトを推定することによって前記クライアントデバイスに対する現在の速度を推定するのに使用されることを特徴とする請求項５に記載のシステム。   The system of claim 5, wherein the RF energy is used to estimate a current velocity for the client device by estimating a Doppler shift. 前記ドップラーシフトは、ブラインド推定技術を使用して、前記アンテナから前記クライアントに反射されて該アンテナに戻る前記ＲＦエネルギを使用して計算されることを特徴とする請求項２８に記載のシステム。   29. The system of claim 28, wherein the Doppler shift is calculated using the RF energy reflected from the antenna back to the client using a blind estimation technique. 前記ＲＦエネルギは、トレーニング信号から構成され、前記ドップラーシフトは、該トレーニング信号を使用して計算されることを特徴とする請求項２８に記載のシステム。   29. The system of claim 28, wherein the RF energy is comprised of a training signal and the Doppler shift is calculated using the training signal. 前記クライアントデバイスの速度が指定の閾値よりも大きい場合に、高速クライアントデバイスと通信することができる第１のＭＵ−ＭＡＳネットワークに該クライアントデバイスを割り当て、及び該クライアントデバイスの速度が該指定の閾値よりも小さい場合に、第２のＭＵ−ＭＡＳネットワークに該クライアントデバイスを割り当てることを特徴とする請求項５に記載のシステム。   If the speed of the client device is greater than a specified threshold, assign the client device to a first MU-MAS network capable of communicating with a high speed client device, and the speed of the client device is greater than the specified threshold 6. The system of claim 5, wherein the client device is assigned to a second MU-MAS network when the value is also smaller. 前記第１のＭＵ−ＭＡＳネットワークは、第１の平均待ち時間を有するＢＴＳネットワークを通じて接続された複数の基地局送受信機（ＢＴＳ）を含み、
前記第２のＭＵ−ＭＡＳネットワークは、前記第１の平均待ち時間よりも低い第２の平均待ち時間を有するＢＴＳネットワークを通じて接続された複数のＢＴＳを含む、
ことを特徴とする請求項３１に記載のシステム。 The first MU-MAS network includes a plurality of base station transceivers (BTSs) connected through a BTS network having a first average latency;
The second MU-MAS network includes a plurality of BTSs connected through a BTS network having a second average latency that is lower than the first average latency.
32. The system of claim 31, wherein: 前記ＭＵ−ＭＡＳ事前符号化データストリームの各々に前記電力スケーリング係数を適用することは、該ＭＵ−ＭＡＳ事前符号化データストリームの各々に該電力スケーリング係数を乗算することを含むことを特徴とする請求項６に記載のシステム。   Applying the power scaling factor to each of the MU-MAS pre-encoded data streams includes multiplying each of the MU-MAS pre-encoded data streams by the power scaling factor. Item 7. The system according to Item 6. 前記ＣＱＩは、前記通信チャンネルの各々に対する平均信号対ノイズ比（ＳＮＲ）又は受信信号強度表示（ＲＳＳＩ）を含むことを特徴とする請求項６に記載のシステム。   The system of claim 6, wherein the CQI includes an average signal to noise ratio (SNR) or a received signal strength indication (RSSI) for each of the communication channels. 前記電力スケーリング係数が、全てのＭＵ−ＭＡＳアンテナに送られた前記データストリームの各々に適用され、かつ瞬間的なＭＵ−ＭＡＳ当たりアンテナ送信電力が所定の最大許容露出（ＭＰＥ）限界値よりも大きい場合があっても平均ＭＵ−ＭＡＳ当たりアンテナ電力が該ＭＰＥ限界値よりも低く維持されるように動的に調節されることを特徴とする請求項６に記載のシステム。   The power scaling factor is applied to each of the data streams sent to all MU-MAS antennas and the instantaneous antenna transmit power per MU-MAS is greater than a predetermined maximum allowable exposure (MPE) limit value 7. The system of claim 6, wherein the system is dynamically adjusted so that the antenna power per average MU-MAS is maintained below the MPE limit value in some cases. 前記ＭＵ−ＭＡＳ事前符号化データストリームの各々に前記電力スケーリング係数を適用することは、該ＭＵ−ＭＡＳ事前符号化データストリームの各々に該電力スケーリング係数を乗算することを特徴とする請求項７に記載のシステム。   The method of claim 7, wherein applying the power scaling factor to each of the MU-MAS pre-encoded data streams multiplies each of the MU-MAS pre-encoded data streams by the power scaling factor. The described system. 前記ＣＱＩは、前記通信チャンネルの各々に対する平均信号対ノイズ比（ＳＮＲ）又は受信信号強度表示（ＲＳＳＩ）を含むことを特徴とする請求項７に記載のシステム。   The system of claim 7, wherein the CQI includes an average signal to noise ratio (SNR) or a received signal strength indication (RSSI) for each of the communication channels. 前記電力スケーリング係数は、全てのＭＵ−ＭＡＳアンテナに送られた前記データストリームの各々に適用され、かつ瞬間的なＭＵ−ＭＡＳ当たりアンテナ送信電力が所定の最大許容露出（ＭＰＥ）限界値よりも大きい場合があっても平均ＭＵ−ＭＡＳ当たりアンテナ電力が該ＭＰＥ限界値よりも低く維持されるように動的に調節されることを特徴とする請求項７に記載のシステム。   The power scaling factor is applied to each of the data streams sent to all MU-MAS antennas and the instantaneous antenna transmit power per MU-MAS is greater than a predetermined maximum allowable exposure (MPE) limit value. 8. The system of claim 7, wherein the system is dynamically adjusted so that the antenna power per average MU-MAS is maintained below the MPE limit value in some cases. 直交周波数分割多重（ＯＦＤＭ）を使用するシステムにおいて、前記リンク品質メトリックは、全てのＯＦＤＭトーンにわたる平均信号対ノイズ比を含むことを特徴とする請求項８に記載のシステム。   9. The system of claim 8, wherein in a system using orthogonal frequency division multiplexing (OFDM), the link quality metric includes an average signal to noise ratio across all OFDM tones. 前記リンク品質メトリックは、前記第１の複数のアンテナと前記クライアントの前記アンテナとの間の有効チャンネルの周波数応答であることを特徴とする請求項８に記載のシステム。   The system of claim 8, wherein the link quality metric is a frequency response of an effective channel between the first plurality of antennas and the antenna of the client. 直交周波数分割多重（ＯＦＤＭ）を使用するシステムにおいて、
前記リンク品質メトリックに基づいて、前記異なるクライアントデバイスの各々と通信するのに使用される異なるＯＦＤＭトーンを決定すること、
を更に含むことを特徴とする請求項８に記載のシステム。 In a system using orthogonal frequency division multiplexing (OFDM),
Determining different OFDM tones used to communicate with each of the different client devices based on the link quality metric;
The system of claim 8 further comprising: それぞれの前記クライアントデバイスの各々への通信に使用される前記ＭＣＳの表示を送信すること、
を更に含むことを特徴とする請求項８に記載のシステム。 Sending an indication of the MCS used for communication to each of the respective client devices;
The system of claim 8 further comprising: 直交周波数分割多重（ＯＦＤＭ）を使用するシステムにおいて、
それぞれの前記クライアントデバイスの各々への通信に使用される異なるトーンの表示を送信すること、
を更に含むことを特徴とする請求項８に記載のシステム。 In a system using orthogonal frequency division multiplexing (OFDM),
Sending an indication of the different tones used for communication to each of the respective client devices;
The system of claim 8 further comprising: チャンネル利得の検出された時間的変動に基づいて前記ＭＣＳを調節することを更に含むことを特徴とする請求項８に記載のシステム。   9. The system of claim 8, further comprising adjusting the MCS based on a detected temporal variation in channel gain. 前記ＭＣＳは、チャンネル干渉時間の部分毎に再計算されることを特徴とする請求項１８に記載のシステム。   The system of claim 18, wherein the MCS is recalculated for each portion of channel interference time. 前記ＭＵ−ＭＡＳ送信アンテナは、前記送信機と該受信機間の前記チャンネル状態情報を認識し、該送信機は、該チャンネル状態情報を利用して同時に送信される干渉信号を決定することを特徴とする請求項１に記載のシステム。   The MU-MAS transmit antenna recognizes the channel state information between the transmitter and the receiver, and the transmitter determines an interference signal transmitted simultaneously using the channel state information. The system according to claim 1. 特異値分解（ＳＶＤ）が、事前符号化重みの前記第１の部分集合を決定するためにＯＦＤＭトーンの前記第１の部分集合に対して行われることを特徴とする請求項９に記載のシステム。   The system of claim 9, wherein singular value decomposition (SVD) is performed on the first subset of OFDM tones to determine the first subset of precoding weights. . 前記リンク品質は、信号対ノイズ比（ＳＮＲ）又は信号対干渉ノイズ比（ＳＩＮＲ）として測定されることを特徴とする請求項１０に記載のシステム。   The system of claim 10, wherein the link quality is measured as a signal to noise ratio (SNR) or a signal to interference noise ratio (SINR). 前記ＭＵ−ＭＡＳアンテナは、トレーニング信号を送信し、前記クライアントデバイスは、そのトレーニングに基づいて前記受信信号品質を推定することを特徴とする請求項４８に記載のシステム。   49. The system of claim 48, wherein the MU-MAS antenna transmits a training signal and the client device estimates the received signal quality based on the training. 前記リンク品質測定値を使用してクライアントデバイスクラスターを定義することは、ターゲットクライアントデバイスに対して非ゼロリンク品質メトリックを有する前記アンテナの部分集合を識別することを含むことを特徴とする請求項１０に記載のシステム。   11. The defining a client device cluster using the link quality measurement includes identifying a subset of the antennas having a non-zero link quality metric for a target client device. The system described in. 前記クライアントデバイスクラスターが選択された状態で、あらゆるクライアントデバイスへの該クライアントデバイスクラスター内の全ての送信機からの前記ＣＳＩは、該クライアントデバイスクラスター内の全てのＢＴＳに対して利用可能にされることを特徴とする請求項１０に記載のシステム。   With the client device cluster selected, the CSI from all transmitters in the client device cluster to every client device is made available to all BTSs in the client device cluster The system of claim 10. 前記ＣＳＩ情報は、基地局ネットワーク（ＢＳＮ）を通じて全てのＢＴＳにわたって共有されることを特徴とする請求項５１に記載のシステム。   52. The system of claim 51, wherein the CSI information is shared across all BTSs through a base station network (BSN). アップリンク／ダウンリンク（ＵＬ／ＤＬ）チャンネル相互関係が、時分割複信（ＴＤＤ）システムのためのＵＬチャンネル上のトレーニングから前記ＣＳＩを導出するのに利用されることを特徴とする請求項１０に記載のシステム。   The uplink / downlink (UL / DL) channel correlation is utilized to derive the CSI from training on a UL channel for a time division duplex (TDD) system. The system described in. 前記ＢＴＳへの全てのクライアントデバイスからのフィードバックチャンネルが、周波数分割複信（ＦＤＤ）システムに使用されることを特徴とする請求項１０に記載のシステム。   The system of claim 10, wherein feedback channels from all client devices to the BTS are used in a frequency division duplex (FDD) system. フィードバックの量を低減するために、前記リンク品質行列の前記非ゼロ入力に対応する前記ＣＳＩのみがフィードバックされることを特徴とする請求項５４に記載のシステム。   55. The system of claim 54, wherein only the CSI corresponding to the non-zero input of the link quality matrix is fed back to reduce the amount of feedback. 実効チャンネル行列
Figure 2013543348
の特異値分解（ＳＶＤ）が計算され、ターゲットクライアントデバイスｋに対する事前符号化重み
Figure 2013543348
が、
Figure 2013543348
のヌル部分空間に対応する右特異ベクトルとして定義されることを特徴とする請求項１０に記載のシステム。 Effective channel matrix
Figure 2013543348
The singular value decomposition (SVD) of the precoding weights for the target client device k
Figure 2013543348
But,
Figure 2013543348
The system of claim 10, wherein the system is defined as a right singular vector corresponding to a null subspace. 送信機の数が、クライアントデバイスの数よりも多く、かつＳＶＤが、実効チャンネル行列を
Figure 2013543348
として分解する場合に、クライアントデバイスｋに対するＭＵ−ＭＡＳ事前符号化重みが、
Figure 2013543348
によって与えられ、ここで、
Figure 2013543348
は、列が
Figure 2013543348
のヌル部分空間の特異ベクトルである行列であることを特徴とする請求項１０に記載のシステム。 The number of transmitters is greater than the number of client devices and the SVD has an effective channel matrix
Figure 2013543348
MU-MAS pre-encoding weight for client device k is
Figure 2013543348
Where, given by
Figure 2013543348
Is the column
Figure 2013543348
The system of claim 10, wherein the system is a matrix that is a singular vector of a null subspace. マルユーザ（ＭＵ）マルチアンテナシステム（MU-ＭＡＳ）で実施する方法あって、
バックホール通信チャンネルとして使用される有線リンク、無線リンク、又は両者の組合せから成るネットワークを介して、一つまたはそれ以上の集中型ユニットを複数の分散型送受信機局又はアンテナに通信接続する段階と、
Ｎ個のデータストリームを、M個の事前符号化データストリームに変換する段階であって、各事前符号化データストリームが、Ｎ個のデータストリームの内の幾つか又は全ての組合せである段階と、
前記M個の事前符号化データストリームが前記ネットワークを介して前記分散型送受信機局に送る段階と、
無線リンクを介して少なくとも一つのクライアントに前記事前符号化データストリームを同時に送る段階であって、少なくとも一つのクライアントデバイスが、元のN個のデータストリームの少なくとも一つを受信するようにする段階から成ることを特徴とする方法。 There is a method implemented in a multi-user (MU) multi-antenna system (MU-MAS),
Communicatively connecting one or more centralized units to a plurality of distributed transceiver stations or antennas via a network of wired links, wireless links, or a combination of both used as backhaul communication channels; ,
Converting N data streams into M pre-encoded data streams, each pre-encoded data stream being a combination of some or all of the N data streams;
Sending the M pre-encoded data streams over the network to the distributed transceiver station;
Simultaneously sending the pre-encoded data stream to at least one client over a wireless link, wherein at least one client device receives at least one of the original N data streams. A method characterized by comprising. 前記複数の分散型アンテナが、ゼロＲＦエネルギを有する空間にロケーションを作成するために無線周波数（RF）信号を送信することを特徴とする請求項５８の方法。   59. The method of claim 58, wherein the plurality of distributed antennas transmit radio frequency (RF) signals to create locations in a space having zero RF energy. 前記ＭＵ−ＭＡＳが隣接するクラスター間の干渉を除去し、前記方法が、
ＭＵ−ＭＡＳ通信チャネルを介して、第１のＭＵ−ＭＡＳクラスターから第１のクライアントデバイスと通信する段階と、
前記第１のＭＵ−ＭＡＳクラスターからの信号強度を、前記第１のクライアントデバイスで検出する段階と、
前記ＭＵ−ＭＡＳ通信チャンネルと干渉する信号を第２のＭＵ−ＭＡＳクラスターで発生する段階であって、前記第２のＭＵ−ＭＡＳクラスターからの干渉信号強度を前記第１のクライアントデバイスによって検出する段階と、
前記第１のＭＵ−ＭＡＳクラスターからの前記信号強度が、前記の第２のＭＵ−ＭＡＳクラスターからの前記干渉信号強度の値に対する指定の値に到達した場合に、前記第１のクライアントデバイスの一つ以上のアンテナと、前記第２のＭＵ−ＭＡＳクラスターの一つ以上のアンテナとの間のチャンネル状態を定めるチャンネル状態情報（CＳＩ）を発生し、前記ＣＳＩを、前記第２のＭＵ−ＭＡＳクラスター内の基地送受信機局（ＢＴＳ）に送信する段階と、
前記ＢＴＳが、前記第１クライアントデバイスにおけるＲＦ干渉を避けるために、ＭＵ−ＭＡＳクラスター間干渉（ＩＭＣＩ）相殺によってＭＵ-ＭＵＳ事前符号化を実施する段階と、を更に含む請求項５８記載の方法。 The MU-MAS removes interference between adjacent clusters, the method comprising:
Communicating with a first client device from a first MU-MAS cluster via a MU-MAS communication channel;
Detecting signal strength from the first MU-MAS cluster at the first client device;
Generating a signal interfering with the MU-MAS communication channel in a second MU-MAS cluster, wherein the first client device detects an interference signal strength from the second MU-MAS cluster. When,
One of the first client devices when the signal strength from the first MU-MAS cluster reaches a specified value for the value of the interference signal strength from the second MU-MAS cluster. Generating channel state information (CSI) defining a channel state between one or more antennas and one or more antennas of the second MU-MAS cluster, wherein the CSI is defined as the second MU-MAS cluster; Transmitting to a base transceiver station (BTS) in the
59. The method of claim 58, further comprising: the BTS performing MU-MUS precoding with MU-MAS intercluster interference (IMCI) cancellation to avoid RF interference at the first client device. 前記ＭＵ−ＭＡＳが、第１クライアントデバイスとの通信を第１クライアントデバイスが第１のＭＵ−ＭＡＳクラスターから第２のＭＵ−ＭＡＳクラスターまで移動する時に調節し、前記方法が、
前記第１のクライアントデバイスと前記第１のＭＵ−ＭＡＳクラスター間（「Ｓ１」）及び該第１のクライアントデバイスと第２のＭＵ−ＭＡＳクラスター間（「Ｓ２」）の信号強度を検出する段階と、
前記第１のクライアントデバイスが、Ｓ２がＳ１に対して十分に低い第１の指定ゾーン内である時に、該第１のクライアントデバイスを含む第１の複数のクライアントに同じ周波数帯域内で同時非干渉データストリームを送信するために前記第１のＭＵ−ＭＡＳクラスター内の基地送受信機局（ＢＴＳ）の少なくとも１つに対して従来のＭＵ−ＭＡＳ事前符号化を実施する段階と、
該第１のクライアントを含まない第２の複数のクライアントデバイスに同じ周波数帯域内で同時非干渉データストリームを送信するために前記第２のＭＵ−ＭＡＳクラスターの該ＢＴＳに対して従来のＭＵ−ＭＡＳ事前符号化を実施する段階と、
前記第１のクライアントデバイスが、Ｓ２及びＳ１の相対値が結果として第１の閾値が到達するように、Ｓ２がＳ１に対して増加し及び／又はＳ１がＳ２に対して減少した第２の指定ゾーン内である時に、該第１のクライアントデバイスの１つ又はそれよりも多くのアンテナと前記第２のＭＵ−ＭＡＳクラスターの１つ又はそれよりも多くのアンテナとの間のチャンネル状態を定義するチャンネル状態情報（ＣＳＩ）を生成し、該第２のＭＵ−ＭＡＳクラスターのＢＴＳが、該ＣＳＩを使用して、該第１のクライアントデバイスでのＲＦ干渉を回避するためにＭＵ−ＭＡＳクラスター間干渉（ＩＭＣＩ）相殺を用いてＭＵ−ＭＡＳ事前符号化を実施する段階と、
前記第１のクライアントデバイスが、Ｓ２及びＳ１の相対値が結果として第２の閾値が到達するように、Ｓ２がＳ１に対して増加し及び／又はＳ１がＳ２に対して減少した第３の指定ゾーン内である時に、該第１のクライアントデバイスを含む第２の複数のクライアントデバイスに同じ周波数帯域内で同時非干渉データストリームを送信するために前記第２のＭＵ−ＭＡＳクラスターの前記ＢＴＳに従来のＭＵ−ＭＡＳ事前符号化を実施する段階と、
該第１のクライアントデバイスの１つ又はそれよりも多くのアンテナと前記第１のＭＵ−ＭＡＳクラスターの１つ又はそれよりも多くのアンテナとの間のチャンネル状態を定義するチャンネル状態情報（ＣＳＩ）を生成し、該第１のＭＵ−ＭＡＳクラスターのＢＴＳが、該ＣＳＩを使用して、該第１のクライアントデバイスでのＲＦ干渉を回避するためにＭＵ−ＭＡＳクラスター間干渉（ＩＭＣＩ）相殺を用いてＭＵ−ＭＡＳ事前符号化を実施する段階と、
前記第１のクライアントデバイスが、Ｓ２及びＳ１の相対値が結果として第３の閾値が到達するように、Ｓ２がＳ１に対して増加し及び／又はＳ１がＳ２に対して減少した第４の指定ゾーン内である時に、該第１のクライアントデバイスを含む前記第２の複数のクライアントデバイスに同じ周波数帯域内で同時非干渉データストリームを送信するために前記第２のＭＵ−ＭＡＳクラスター内の前記基地送受信機局（ＢＴＳ）の少なくとも１つに対して従来のＭＵ−ＭＡＳ事前符号化を実施する段階と、
該第１のクライアントデバイスを含まない前記第１の複数のクライアントデバイスに同じ周波数帯域内で同時非干渉データストリームを送信するために前記第１のＭＵ−ＭＡＳクラスターの該ＢＴＳに対して従来のＭＵ−ＭＡＳ事前符号化を実施する段階と、
を更に含むことを特徴とする請求項５８記載の方法。 The MU-MAS adjusts communication with a first client device when the first client device moves from a first MU-MAS cluster to a second MU-MAS cluster;
Detecting signal strength between the first client device and the first MU-MAS cluster (“S1”) and between the first client device and the second MU-MAS cluster (“S2”); ,
When the first client device is in a first designated zone where S2 is sufficiently low relative to S1, simultaneous non-interference in the same frequency band to a first plurality of clients including the first client device Performing conventional MU-MAS precoding for at least one of the base transceiver stations (BTS) in the first MU-MAS cluster to transmit a data stream;
A conventional MU-MAS for the BTS of the second MU-MAS cluster to transmit simultaneous non-interfering data streams in the same frequency band to a second plurality of client devices not including the first client. Performing pre-encoding; and
The first client device has a second designation in which S2 is increased with respect to S1 and / or S1 is decreased with respect to S2, such that a relative value of S2 and S1 results in a first threshold being reached. Define channel conditions between one or more antennas of the first client device and one or more antennas of the second MU-MAS cluster when in a zone Generate channel state information (CSI), and the BTS of the second MU-MAS cluster uses the CSI to avoid MU-MAS inter-cluster interference to avoid RF interference at the first client device Performing MU-MAS precoding with (IMCI) cancellation;
The first client device has a third designation in which S2 increases with respect to S1 and / or S1 decreases with respect to S2, such that a relative value of S2 and S1 results in a second threshold being reached. Conventionally to the BTS of the second MU-MAS cluster to transmit simultaneous non-interfering data streams in the same frequency band to a second plurality of client devices including the first client device when in the zone Performing MU-MAS pre-coding of
Channel state information (CSI) that defines the channel state between one or more antennas of the first client device and one or more antennas of the first MU-MAS cluster And the BTS of the first MU-MAS cluster uses the CSI to use MU-MAS inter-cluster interference (IMCI) cancellation to avoid RF interference at the first client device Performing MU-MAS pre-coding,
The first client device has a fourth designation that S2 has increased with respect to S1 and / or S1 has decreased with respect to S2, such that the relative value of S2 and S1 results in a third threshold being reached. The base in the second MU-MAS cluster to transmit simultaneous non-interfering data streams in the same frequency band to the second plurality of client devices including the first client device when in a zone Performing conventional MU-MAS precoding for at least one of the transceiver stations (BTS);
A conventional MU for the BTS of the first MU-MAS cluster to transmit simultaneous non-interfering data streams in the same frequency band to the first plurality of client devices not including the first client device. -Performing MAS pre-encoding;
59. The method of claim 58, further comprising: 前記ＭＵ−ＭＡＳが第１のクライアントデバイスとの通信を調節し、前記方法が、
前記クライアントデバイスに、複数のアンテナを有するＭＵ−ＭＡＳネットワークからＲＦエネルギを送る段階と、
該ＭＵ−ＭＡＳネットワークの該クライアントデバイス及び／又は１つ又はそれよりも多くの基地局送受信機（ＢＴＳ）によって、該クライアントデバイスの現在の速度を推定する段階と、
該ＢＴＳのうちの１つ又はそれよりも多くによって、該クライアントデバイスを該クライアントデバイスの該推定速度に基づいて特定のＭＵ−ＭＡＳネットワークに割り当てる段階と、を更に含む、
ことを特徴とする請求項５８記載の方法。 The MU-MAS coordinates communication with a first client device, the method comprising:
Sending RF energy to the client device from a MU-MAS network having multiple antennas;
Estimating the current speed of the client device by the client device and / or one or more base station transceivers (BTS) of the MU-MAS network;
Further comprising assigning the client device to a particular MU-MAS network based on the estimated rate of the client device by one or more of the BTSs.
59. The method of claim 58, wherein: 前記ＭＵ−ＭＡＳが第１のクライアントデバイスとの通信を調節し、前記方法が、
１つ又はそれよりも多くのデータストリームにＭＵ−ＭＡＳ重みを適用して１つ又はそれよりも多くのＭＵ−ＭＡＳ事前符号化データストリームを生成する段階と、
前記ＭＵ−ＭＡＳ事前符号化データストリームが送信される通信チャンネルに関連する入力チャンネル品質情報（ＣＱＩ）及び／又はチャンネル状態情報（ＣＳＩ）を受信する段階と、
前記ＣＱＩ及び／又はＣＳＩに基づいて電力スケーリング係数を決定する段階と、
前記ＭＵ−ＭＡＳ事前符号化データストリームの各々に前記電力スケーリング係数を適用する段階と、を更に含む、
ことを特徴とする請求項５８記載の方法。 The MU-MAS coordinates communication with a first client device, the method comprising:
Applying MU-MAS weights to one or more data streams to generate one or more MU-MAS pre-encoded data streams;
Receiving input channel quality information (CQI) and / or channel state information (CSI) associated with a communication channel over which the MU-MAS pre-encoded data stream is transmitted;
Determining a power scaling factor based on the CQI and / or CSI;
Applying the power scaling factor to each of the MU-MAS pre-encoded data streams.
59. The method of claim 58, wherein: 前記ＭＵ−ＭＡＳが第１のクライアントとの通信を調節し、前記方法が、
チャンネル状態情報（ＣＳＩ）及び／又はチャンネル品質情報（ＣＱＩ）を受信する段階と、
前記ＣＳＩ又はＣＱＩに基づいて同じクラスター内のＭＵ−ＭＡＳアンテナの群を選択する段階と、
前記ＣＳＩ及び／又はＣＱＩに基づいて、ＭＵ−ＭＡＳ重みを適用して各群内で１つ又はそれよりも多くのＭＵ−ＭＡＳ事前符号化データストリームを生成する段階と、を更地に含む
ことを特徴とする請求項５８記載の方法。 The MU-MAS coordinates communication with a first client, the method comprising:
Receiving channel state information (CSI) and / or channel quality information (CQI);
Selecting a group of MU-MAS antennas in the same cluster based on the CSI or CQI;
Further comprising applying MU-MAS weights to generate one or more MU-MAS pre-encoded data streams within each group based on the CSI and / or CQI. 59. The method of claim 58, wherein: 前記ＭＵ−ＭＡＳが複数のクライアントデバイスと通信し、前記方法が、
第１の複数のＭＵ−ＭＡＳアンテナの各々とクライアントデバイスの各々との間のチャンネル状態を定義するチャンネル状態情報（ＣＳＩ）を決定する段階と、
前記ＣＳＩを使用して、前記第１の複数のＭＵ−ＭＡＳアンテナの各々と前記クライアントデバイスの各々のアンテナとの間の前記チャンネルの各々に対するＭＵ−ＭＡＳ事前符号化重みを決定する段階と、
前記ＣＳＩ及びＭＵ−ＭＡＳ事前符号化重みを使用して、前記第１の複数のＭＵ−ＭＡＳアンテナの各々と前記クライアントデバイスの各々の前記アンテナとの間のリンク品質を定義するリンク品質メトリックを決定する段階と、
前記リンク品質メトリックを使用して異なるクライアントデバイスに対する変調符号化方式（ＭＣＳ）を決定する段階と、
前記第１の複数のＭＵ−ＭＡＳアンテナの各々から個々のクライアントデバイスの各々までそれらのクライアントデバイスに対する前記決定されたＭＣＳを使用して事前符号化データストリームを送信する段階を更に含む
ことを特徴とする請求項５８記載の方法。 The MU-MAS communicates with a plurality of client devices, the method comprising:
Determining channel state information (CSI) defining a channel state between each of the first plurality of MU-MAS antennas and each of the client devices;
Using the CSI to determine MU-MAS precoding weights for each of the channels between each of the first plurality of MU-MAS antennas and each antenna of the client device;
The CSI and MU-MAS precoding weights are used to determine a link quality metric that defines a link quality between each of the first plurality of MU-MAS antennas and each of the antennas of the client device. And the stage of
Determining a modulation and coding scheme (MCS) for different client devices using the link quality metric;
Further comprising transmitting a pre-encoded data stream from each of the first plurality of MU-MAS antennas to each of the individual client devices using the determined MCS for those client devices. 59. The method of claim 58. 前記ＭＵ−ＭＡＳが事前符号化補間を行い、且つ複数のクライアントデバイスと通信するために直交周波数分割多重（ＯＦＤＭ）及びＭＵ−ＭＡＳ事前符号化を使用し、前記方法が、
ＯＤＦＭトーンの第１の部分集合を選択して事前符号化重みの第１の部分集合を決定する段階と、
事前符号化重みの前記第１の部分集合間で補間することにより、ＯＤＦＭトーンの第２の部分集合のための事前符号化重みの第２の部分集合を導出する段階と、
事前符号化重みの前記第１の部分集合及び事前符号化重みの前記第２の部分集合の組合せを使用して、データストリームを該データストリームをクライアントデバイスに送信する前に事前符号化する段階と、を更に含む
ことを特徴とする請求項５８記載の方法。 The MU-MAS performs precoding interpolation and uses orthogonal frequency division multiplexing (OFDM) and MU-MAS precoding to communicate with multiple client devices, the method comprising:
Selecting a first subset of ODFM tones to determine a first subset of precoding weights;
Deriving a second subset of precoding weights for the second subset of ODFM tones by interpolating between said first subsets of precoding weights;
Using a combination of the first subset of pre-encoding weights and the second subset of pre-encoding weights to pre-encode the data stream before sending the data stream to a client device; 59. The method of claim 58, further comprising: 前記ＭＵ−ＭＡＳが、
複数の無線クライアントデバイスと、
前記複数のクライアントデバイスとの複数の同時の通信チャンネルを確立するための複数のＭＵ−ＭＡＳアンテナを有する複数の基地送受信機局（ＢＴＳ）と、
を含み、前記方法が、
前記ＢＴＳ及び／又は前記無線クライアントデバイスのいずれかが、それらの間の前記通信チャンネルのリンク品質を測定し、かつ該リンク品質測定値を使用してクライアントデバイスクラスターを定義する段階と、
前記ＢＴＳ及び／又は前記無線クライアントデバイスは、更に、定義されたクライアントデバイスクラスター内の各クライアントデバイスと各ＭＵ−ＭＡＳアンテナ間のチャンネル状態情報（ＣＳＩ）を測定し、かつ該測定ＣＳＩに基づいて該クライアントデバイスクラスター内の該ＭＵ−ＭＡＳアンテナとそれらのＭＵ−ＭＡＳアンテナによって到達可能な前記クライアントデバイスとの間のデータ伝送を事前符号化する段階と、を更に含む
ことを特徴とする請求項５８記載の方法。 The MU-MAS is
Multiple wireless client devices;
A plurality of base transceiver stations (BTS) having a plurality of MU-MAS antennas for establishing a plurality of simultaneous communication channels with the plurality of client devices;
The method comprising:
Either the BTS and / or the wireless client device measure the link quality of the communication channel between them and define the client device cluster using the link quality measurement;
The BTS and / or the wireless client device further measures channel state information (CSI) between each client device and each MU-MAS antenna in the defined client device cluster, and based on the measured CSI 59. Pre-encoding data transmission between the MU-MAS antennas in a client device cluster and the client devices reachable by those MU-MAS antennas. the method of. ブロック対角化事前符号化を使用することを特徴とする請求項５８に記載の方法。   59. The method of claim 58, wherein block diagonalized precoding is used. Ｍ個の分散型送信アンテナが、ゼロＲＦエネルギの（Ｍ−１）個までの点を作成することを特徴とする請求項５９に記載の方法。   60. The method of claim 59, wherein the M distributed transmit antennas create up to (M-1) points of zero RF energy. 前記ゼロＲＦエネルギのロケーションは、受信機であり、前記送信アンテナは、前記送信機と該受信機間の前記チャンネル状態情報を認識し、該送信機は、該チャンネル状態情報を利用して同時に送信される干渉信号を決定することを特徴とする請求項５９に記載の方法。   The location of the zero RF energy is a receiver, the transmit antenna recognizes the channel state information between the transmitter and the receiver, and the transmitter transmits simultaneously using the channel state information. 60. The method of claim 59, wherein the interference signal to be determined is determined. 前記送信アンテナは、マルチユーザ（ＭＵ）マルチアンテナシステム(ＭＵ−ＭＡＳ)アンテナであり、
前記ゼロＲＦエネルギを有するロケーションは、クライアントデバイスのロケーションに対応し、ＭＵ−ＭＡＳ事前符号化が、該クライアントデバイスに対してゼロＲＦエネルギの点を作成するために使用されることを特徴とする請求項５９に記載の方法。 The transmit antenna is a multi-user (MU) multi-antenna system (MU-MAS) antenna;
The location having zero RF energy corresponds to the location of a client device, and MU-MAS precoding is used to create a zero RF energy point for the client device. 60. The method according to Item 59. ゼロＲＦエネルギの点が、隣接ＭＵ−ＭＡＳクラスター間の干渉を除去するために作成されることを特徴とする請求項５９に記載の方法。   60. The method of claim 59, wherein zero RF energy points are created to eliminate interference between adjacent MU-MAS clusters. 前記第１のＭＵ−ＭＡＳクラスターからの該第１のクライアントデバイスによって検出された前記信号強度と前記第２のＭＵ−ＭＡＳからの該第１のクライアントデバイスによって検出された前記干渉信号強度との比率に基づく該第１のクライアントデバイスでの信号対干渉ノイズ比（ＳＩＮＲ）を推定することにより、該第１のＭＵ−ＭＡＳクラスターからの該信号強度の指定の値が該第２のＭＵ−ＭＡクラスターからの該干渉信号強度の前記値に対する前記指定の値に到達するか否かを決定する段階と、
前記第１のクライアントデバイスが、前記ＳＩＮＲが指定の閾値よりも下に移動する時に該第１のクライアントデバイスの１つ又はそれよりも多くのアンテナと前記第２のＭＵ−ＭＡＳクラスターの１つ又はそれよりも多くのアンテナとの間のチャンネル状態を定義するチャンネル状態情報（ＣＳＩ）を生成する段階と、
ことを更に含むことを特徴とする請求項６０に記載の方法。 A ratio between the signal strength detected by the first client device from the first MU-MAS cluster and the interference signal strength detected by the first client device from the second MU-MAS. By estimating a signal-to-interference noise ratio (SINR) at the first client device based on the first MU-MAS cluster, a specified value of the signal strength from the first MU-MAS cluster is Determining whether to reach the specified value for the value of the interference signal strength from
When the first client device moves the SINR below a specified threshold, one or more antennas of the first client device and one or more of the second MU-MAS clusters or Generating channel state information (CSI) that defines channel states with more antennas;
61. The method of claim 60, further comprising: 前記第１のＭＵ−ＭＡＳクラスター内の複数の基地局送受信機（ＢＴＳ）で、前記第１のクライアントデバイスを含む第１の複数のクライアントデバイスに同じ周波数帯域内で同時非干渉データストリームを送信するために従来のＭＵ−ＭＡＳ事前符号化を実施する段階と、
前記第２のＭＵ−ＭＡＳクラスター内の前記ＢＴＳで、第２の複数のクライアントデバイスに同じ周波数帯域内で同時非干渉データストリームを送信するために前記ＩＭＣＩ相殺事前符号化と同時に実施される従来のＭＵ−ＭＡＳ事前符号化を実施する段階と、
を更に含むことを特徴とする請求項６０に記載の方法。 A plurality of base station transceivers (BTS) in the first MU-MAS cluster transmit simultaneous non-interfering data streams in a same frequency band to a plurality of first client devices including the first client device. Performing conventional MU-MAS precoding for
Conventional performed at the BTS in the second MU-MAS cluster concurrently with the IMCI cancellation precoding to transmit simultaneous non-interfering data streams in the same frequency band to a second plurality of client devices Performing MU-MAS precoding;
61. The method of claim 60, further comprising: 第２のＭＵ−ＭＡＳクラスターからの干渉信号強度を前記第１のクライアントデバイスによって検出する段階は、前記第１のＭＵ−ＭＡＳクラスターの前記ＭＵ−ＭＡＳアンテナからの指定のサイレンス期間中に信号強度を測定することを含むことを特徴とする請求項６０に記載の方法。   Detecting by the first client device the interference signal strength from a second MU-MAS cluster is the step of detecting the signal strength during a specified silence period from the MU-MAS antenna of the first MU-MAS cluster. 61. The method of claim 60, comprising measuring. 前記指定のサイレンス期間は、所定の送信フレーム構造に基づいて指定されることを特徴とする請求項７５に記載の方法。   The method of claim 75, wherein the specified silence period is specified based on a predetermined transmission frame structure. 前記第１のＭＵ−ＭＡＳクラスター及び前記第２のＭＵ−ＭＡＳクラスターは、マルチキャリア直交周波数分割多重（ＯＦＤＭ）システムを含み、前記方法が、
前記第１のクライアントで信号対干渉比（ＳＩＲ）又は信号対干渉ノイズ比（ＳＩＮＲ）を推定することにより、前記第１のＭＵ−ＭＡＳクラスターからの前記信号強度の指定の値が、前記第２のＭＵ−ＭＡＳクラスターからの前記干渉信号強度の前記値に対する前記指定の値に到達するか否かを決定し、該ＳＩＲが、該第１のＭＵ−ＭＡＳクラスターからの該第１のクライアントによって検出された該信号強度と該第２のＭＵ−ＭＡＳクラスターからの該第１のクライアントによって検出された該干渉信号強度との比率に基づいており、該ＳＩＮＲが、該第１のＭＵ−ＭＡＳクラスターからの該第１のクライアントによって検出された該信号強度と該第２のＭＵ−ＭＡＳクラスターからの該第１のクライアントによって検出された該干渉信号強度及びノイズ信号強度との比率に基づいており、該ＳＩＲ又はＳＩＮＲが、前記ＯＤＦＭシステムのヌルトーンから推定される前記決定する段階を更に含む、
ことを特徴とする請求項６０に記載の方法。 The first MU-MAS cluster and the second MU-MAS cluster comprise a multi-carrier orthogonal frequency division multiplexing (OFDM) system, the method comprising:
By estimating a signal-to-interference ratio (SIR) or a signal-to-interference noise ratio (SINR) at the first client, the specified value of the signal strength from the first MU-MAS cluster becomes the second value. Determine whether the specified value for the value of the interference signal strength from the MU-MAS cluster of the first MU-MAS cluster is reached, and the SIR is detected by the first client from the first MU-MAS cluster Based on a ratio of the measured signal strength to the interference signal strength detected by the first client from the second MU-MAS cluster, wherein the SINR is derived from the first MU-MAS cluster. The signal strength detected by the first client and the interference detected by the first client from the second MU-MAS cluster. Is based on the ratio between the intensity and the noise signal intensity, the SIR, or SINR further comprises the step of the determined estimated from null tones of the ODFM systems,
61. The method of claim 60. 前記第１のＭＵ−ＭＡＳクラスターからの前記信号強度が前記第２のＭＵ−ＭＡＳクラスターからの前記干渉信号強度の前記値に対する指定の値に到達した場合に、該第２のＭＵ−ＭＡＳクラスターからのトレーニング信号を使用して、前記第１のクライアントデバイスの１つ又はそれよりも多くのアンテナと該第２のＭＵ−ＭＡＳクラスターの１つ又はそれよりも多くのアンテナとの間のチャンネル状態を定義する前記チャンネル状態情報（ＣＳＩ）を生成することを特徴とする請求項６０に記載の方法。   When the signal strength from the first MU-MAS cluster reaches a specified value for the value of the interference signal strength from the second MU-MAS cluster, from the second MU-MAS cluster Are used to determine the channel condition between one or more antennas of the first client device and one or more antennas of the second MU-MAS cluster. 61. The method of claim 60, wherein the channel state information (CSI) to define is generated. 前記第２のＭＵ−ＭＡＳクラスター内の前記ＢＴＳでＭＵ−ＭＡＳクラスター間干渉（ＩＭＣＩ）相殺によってＭＵ−ＭＡＳ事前符号化を実施する段階は、前記第１のクライアントデバイスのロケーションでゼロＲＦエネルギを作成するために高周波（ＲＦ）信号を事前符号化して送信することを含むことを特徴とする請求項６０に記載の方法。   Performing MU-MAS precoding with MU-MAS intercluster interference (IMCI) cancellation at the BTS in the second MU-MAS cluster creates zero RF energy at the location of the first client device 61. The method of claim 60, comprising pre-encoding and transmitting a radio frequency (RF) signal to do so. Ｓ１及びＳ２に対して信号対干渉ノイズ比（ＳＩＮＲ）及び／又は信号対干渉比（ＳＩＲ）を計算する段階と、
ＳＩＲ及び／又はＳＩＮＲの値に基づいて第１、第２、及び第３の閾値を定義する段階と、
を更に含むことを特徴とする請求項６１に記載の方法。 Calculating a signal to interference noise ratio (SINR) and / or a signal to interference ratio (SIR) for S1 and S2;
Defining first, second, and third threshold values based on SIR and / or SINR values;
62. The method of claim 61, further comprising: Ｓ１及びＳ２の前記相対値に基づいて、該第１のクライアントデバイスがゾーン間を移動するのに応答してヒステリシスループを実施して該ゾーンの各々間の反復的な切り換えを回避するために前記第１から第３の閾値の値の各々を動的に調節すること、
を更に含むことを特徴とする請求項６１に記載の方法。 Based on the relative values of S1 and S2, the hysteresis loop is implemented in response to the first client device moving between zones to avoid repetitive switching between each of the zones. Dynamically adjusting each of the first to third threshold values;
62. The method of claim 61, further comprising: 前記クライアントデバイスが現在常駐する前記ゾーンに関する決定が、該クライアントデバイスによって行われることを特徴とする請求項６１に記載の方法。   62. The method of claim 61, wherein a determination regarding the zone in which the client device currently resides is made by the client device. 前記クライアントデバイスが現在常駐する前記ゾーンに関する決定が、前記第１のＭＵ−ＭＡＳクラスター及び／又は前記第２のＭＵ−ＭＡＳクラスター内のＢＴＳによって行われることを特徴とする請求項６１に記載の方法。   62. The method of claim 61, wherein a determination regarding the zone in which the client device currently resides is made by a BTS in the first MU-MAS cluster and / or the second MU-MAS cluster. . 命令のシーケンスを実行するプロセッサとして実施される有限状態機械を用いて実施されることを特徴とする請求項６１に記載の方法。   62. The method of claim 61, implemented using a finite state machine implemented as a processor that executes a sequence of instructions. 前記ＲＦエネルギは、ドップラーシフトを推定することによって前記クライアントデバイスに対する現在の速度を推定するのに使用されることを特徴とする請求項６２に記載の方法。   The method of claim 62, wherein the RF energy is used to estimate a current velocity for the client device by estimating a Doppler shift. 前記ドップラーシフトは、ブラインド推定技術を使用して、前記アンテナから前記クライアントに反射されて該アンテナに戻る前記ＲＦエネルギを使用して計算されることを特徴とする請求項８５に記載の方法。   86. The method of claim 85, wherein the Doppler shift is calculated using the RF energy reflected from the antenna back to the client and back to the antenna using a blind estimation technique. 前記ＲＦエネルギは、トレーニング信号から構成され、前記ドップラーシフトは、該トレーニング信号を使用して計算されることを特徴とする請求項８５に記載の方法。   86. The method of claim 85, wherein the RF energy is comprised of a training signal and the Doppler shift is calculated using the training signal. 前記クライアントデバイスの速度が指定の閾値よりも大きい場合に、前記方法が、高速クライアントデバイスと通信することができる第１のＭＵ−ＭＡＳネットワークに該クライアントデバイスを割り当て、及び該クライアントデバイスの速度が該指定の閾値よりも小さい場合に、第２のＭＵ−ＭＡＳネットワークに該クライアントデバイスを割り当てること更に含むことを特徴とする請求項６２に記載の方法。   If the speed of the client device is greater than a specified threshold, the method assigns the client device to a first MU-MAS network that can communicate with the high-speed client device, and the speed of the client device is the speed of the client device 64. The method of claim 62, further comprising assigning the client device to a second MU-MAS network if it is less than a specified threshold. 前記第１のＭＵ−ＭＡＳネットワークは、第１の平均待ち時間を有するＢＴＳネットワークを通じて接続された複数の基地局送受信機（ＢＴＳ）を含み、
前記第２のＭＵ−ＭＡＳネットワークは、前記第１の平均待ち時間よりも低い第２の平均待ち時間を有するＢＴＳネットワークを通じて接続された複数のＢＴＳを含む、
ことを特徴とする請求項８８に記載の方法。 The first MU-MAS network includes a plurality of base station transceivers (BTSs) connected through a BTS network having a first average latency;
The second MU-MAS network includes a plurality of BTSs connected through a BTS network having a second average latency that is lower than the first average latency.
90. The method of claim 88, wherein: 前記ＭＵ−ＭＡＳ事前符号化データストリームの各々に前記電力スケーリング係数を適用する段階は、該ＭＵ−ＭＡＳ事前符号化データストリームの各々に該電力スケーリング係数を乗算することを含むことを特徴とする請求項６３に記載の方法。   Applying the power scaling factor to each of the MU-MAS pre-encoded data streams comprises multiplying each of the MU-MAS pre-encoded data streams by the power scaling factor. Item 64. The method according to Item 63. 前記ＣＱＩは、前記通信チャンネルの各々に対する平均信号対ノイズ比（ＳＮＲ）又は受信信号強度表示（ＲＳＳＩ）を含むことを特徴とする請求項６３に記載の方法。   64. The method of claim 63, wherein the CQI includes an average signal to noise ratio (SNR) or a received signal strength indication (RSSI) for each of the communication channels. 前記電力スケーリング係数が、全てのＭＵ−ＭＡＳアンテナに送られた前記データストリームの各々に適用され、かつ瞬間的なＭＵ−ＭＡＳ当たりアンテナ送信電力が所定の最大許容露出（ＭＰＥ）限界値よりも大きい場合があっても平均ＭＵ−ＭＡＳ当たりアンテナ電力が該ＭＰＥ限界値よりも低く維持されるように動的に調節されることを特徴とする請求項６３に記載の方法。   The power scaling factor is applied to each of the data streams sent to all MU-MAS antennas and the instantaneous antenna transmit power per MU-MAS is greater than a predetermined maximum allowable exposure (MPE) limit value 64. The method of claim 63, wherein, in some cases, the antenna power per average MU-MAS is dynamically adjusted so as to remain below the MPE limit. 前記ＭＵ−ＭＡＳ事前符号化データストリームの各々に前記電力スケーリング係数を適用する段階は、該ＭＵ−ＭＡＳ事前符号化データストリームの各々に該電力スケーリング係数を乗算することを含むことを特徴とする請求項６４に記載の方法。   Applying the power scaling factor to each of the MU-MAS pre-encoded data streams comprises multiplying each of the MU-MAS pre-encoded data streams by the power scaling factor. Item 65. The method according to Item 64. 前記ＣＱＩは、前記通信チャンネルの各々に対する平均信号対ノイズ比（ＳＮＲ）又は受信信号強度表示（ＲＳＳＩ）を含むことを特徴とする請求項６４に記載の方法。   The method of claim 64, wherein the CQI includes an average signal to noise ratio (SNR) or a received signal strength indication (RSSI) for each of the communication channels. 前記電力スケーリング係数は、全てのＭＵ−ＭＡＳアンテナに送られた前記データストリームの各々に適用され、かつ瞬間的なＭＵ−ＭＡＳ当たりアンテナ送信電力が所定の最大許容露出（ＭＰＥ）限界値よりも大きい場合があっても平均ＭＵ−ＭＡＳ当たりアンテナ電力が該ＭＰＥ限界値よりも低く維持されるように動的に調節されることを特徴とする請求項６４に記載の方法。   The power scaling factor is applied to each of the data streams sent to all MU-MAS antennas and the instantaneous antenna transmit power per MU-MAS is greater than a predetermined maximum allowable exposure (MPE) limit value. 65. The method of claim 64, wherein the method is dynamically adjusted such that the antenna power per average MU-MAS is maintained below the MPE limit value in some cases. 直交周波数分割多重（ＯＦＤＭ）を使用することを更に含み、前記リンク品質メトリックは、全てのＯＦＤＭトーンにわたる平均信号対ノイズ比を含むことを特徴とする請求項６５に記載の方法。   66. The method of claim 65, further comprising using orthogonal frequency division multiplexing (OFDM), wherein the link quality metric comprises an average signal to noise ratio across all OFDM tones. 前記リンク品質メトリックは、前記第１の複数のアンテナと前記クライアントの前記アンテナとの間の有効チャンネルの周波数応答であることを特徴とする請求項６５に記載の方法。   The method of claim 65, wherein the link quality metric is a frequency response of an effective channel between the first plurality of antennas and the antenna of the client. 直交周波数分割多重（ＯＦＤＭ）を使用する段階と、
前記リンク品質メトリックに基づいて、前記異なるクライアントデバイスの各々と通信するのに使用される異なるＯＦＤＭトーンを決定する段階と、
を更に含むことを特徴とする請求項６５に記載の方法。 Using orthogonal frequency division multiplexing (OFDM);
Determining different OFDM tones used to communicate with each of the different client devices based on the link quality metric;
66. The method of claim 65, further comprising: それぞれの前記クライアントデバイスの各々への通信に使用される前記ＭＣＳの表示を送信する段階、
を更に含むことを特徴とする請求項６５に記載の方法。 Sending an indication of the MCS used for communication to each of the respective client devices;
66. The method of claim 65, further comprising: 直交周波数分割多重（ＯＦＤＭ）を使用する段階と、
それぞれの前記クライアントデバイスの各々への通信に使用される異なるトーンの表示を送信する段階と、
を更に含むことを特徴とする請求項６５に記載の方法。 Using orthogonal frequency division multiplexing (OFDM);
Sending an indication of the different tones used for communication to each of the respective client devices;
66. The method of claim 65, further comprising: チャンネル利得の検出された時間的変動に基づいて前記ＭＣＳを調節する段階を更に含むことを特徴とする請求項６５に記載の方法。   66. The method of claim 65, further comprising adjusting the MCS based on a detected temporal variation in channel gain. 前記ＭＣＳは、チャンネル干渉時間の部分毎に再計算されることを特徴とする請求項６５に記載の方法。   66. The method of claim 65, wherein the MCS is recalculated for each portion of channel interference time. 前記ＭＵ−ＭＡＳ送信アンテナは、前記送信機と該受信機間の前記チャンネル状態情報を認識し、該送信機は、該チャンネル状態情報を利用して同時に送信される干渉信号を決定することを特徴とする請求項５８に記載の方法。   The MU-MAS transmit antenna recognizes the channel state information between the transmitter and the receiver, and the transmitter determines an interference signal transmitted simultaneously using the channel state information. 59. The method of claim 58. 特異値分解（ＳＶＤ）が、事前符号化重みの前記第１の部分集合を決定するためにＯＦＤＭトーンの前記第１の部分集合に対して行われることを特徴とする請求項６６に記載の方法。   The method of claim 66, wherein singular value decomposition (SVD) is performed on the first subset of OFDM tones to determine the first subset of pre-encoding weights. . 前記リンク品質は、信号対ノイズ比（ＳＮＲ）又は信号対干渉ノイズ比（ＳＩＮＲ）として測定されることを特徴とする請求項６７に記載の方法。   68. The method of claim 67, wherein the link quality is measured as a signal to noise ratio (SNR) or a signal to interference noise ratio (SINR). 前記ＭＵ−ＭＡＳアンテナは、トレーニング信号を送信し、前記クライアントデバイスは、そのトレーニングに基づいて前記受信信号品質を推定することを特徴とする請求項１０５に記載の方法。   106. The method of claim 105, wherein the MU-MAS antenna transmits a training signal and the client device estimates the received signal quality based on the training. 前記リンク品質測定値を使用してクライアントデバイスクラスターを定義することは、ターゲットクライアントデバイスに対して非ゼロリンク品質メトリックを有する前記アンテナの部分集合を識別することを含むことを特徴とする請求項６７に記載の方法。   68. Defining a client device cluster using the link quality measurement comprises identifying a subset of the antennas having a non-zero link quality metric for a target client device. The method described in 1. 前記クライアントデバイスクラスターが選択された状態で、あらゆるクライアントデバイスへの該クライアントデバイスクラスター内の全ての送信機からの前記ＣＳＩは、該クライアントデバイスクラスター内の全てのＢＴＳに対して利用可能にされることを特徴とする請求項６７に記載の方法。   With the client device cluster selected, the CSI from all transmitters in the client device cluster to every client device is made available to all BTSs in the client device cluster 68. The method of claim 67, wherein: 前記ＣＳＩ情報は、基地局ネットワーク（ＢＳＮ）を通じて全てのＢＴＳにわたって共有されることを特徴とする請求項１０８に記載の方法。   109. The method of claim 108, wherein the CSI information is shared across all BTSs through a base station network (BSN). アップリンク／ダウンリンク（ＵＬ／ＤＬ）チャンネル相互関係が、時分割複信（ＴＤＤ）システムのためのＵＬチャンネル上のトレーニングから前記ＣＳＩを導出するのに利用されることを特徴とする請求項６７に記載の方法。   68. Uplink / downlink (UL / DL) channel correlation is utilized to derive the CSI from training on a UL channel for a time division duplex (TDD) system. The method described in 1. 前記ＢＴＳへの全てのクライアントデバイスからのフィードバックチャンネルが、周波数分割複信（ＦＤＤ）システムに使用されることを特徴とする請求項６７に記載の方法。   68. The method of claim 67, wherein feedback channels from all client devices to the BTS are used in a frequency division duplex (FDD) system. フィードバックの量を低減するために、前記リンク品質行列の前記非ゼロ入力に対応する前記ＣＳＩのみがフィードバックされることを特徴とする請求項１１１に記載の方法。   111. The method of claim 111, wherein only the CSI corresponding to the non-zero input of the link quality matrix is fed back to reduce the amount of feedback. 実効チャンネル行列
Figure 2013543348
の特異値分解（ＳＶＤ）が計算され、ターゲットクライアントデバイスｋに対する事前符号化重み
Figure 2013543348
が、
Figure 2013543348
のヌル部分空間に対応する右特異ベクトルとして定義されることを特徴とする請求項６７に記載の方法。 Effective channel matrix
Figure 2013543348
The singular value decomposition (SVD) of the precoding weights for the target client device k
Figure 2013543348
But,
Figure 2013543348
68. The method of claim 67, defined as a right singular vector corresponding to a null subspace. 送信機の数が、クライアントデバイスの数よりも多く、かつＳＶＤが、実効チャンネル行列を
Figure 2013543348
として分解する場合に、クライアントデバイスｋに対するＭＵ−ＭＡＳ事前符号化重みが、
Figure 2013543348
によって与えられ、ここで、
Figure 2013543348
は、列が
Figure 2013543348
のヌル部分空間の特異ベクトルである行列であることを特徴とする請求項６７に記載の方法。 The number of transmitters is greater than the number of client devices and the SVD has an effective channel matrix
Figure 2013543348
MU-MAS pre-encoding weight for client device k is
Figure 2013543348
Where, given by
Figure 2013543348
Is the column
Figure 2013543348
68. The method of claim 67, wherein the matrix is a singular vector of null subspaces.
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